The Open UniversitySkip to content
 

Dynamic stability of a single-species population in a divided and ephemeral environment

Rosewell, Jonathan (1990). Dynamic stability of a single-species population in a divided and ephemeral environment. In: Shorrocks, Bryan and Swingland, Ian R. eds. Living in a patchy environment. Oxford, UK: Oxford University Press, pp. 63–74.

URL: http://www.oup.co.uk
Google Scholar: Look up in Google Scholar

Abstract

This chapter focuses on an example of domestic Drosophila species living on a divided and ephemeral resource and seeks to demonstrate how the spatial organization of a population may serve to reduce population fluctuations on a 'global' scale. Laboratory experiments are described which demonstrate that Drosophila laboratory cultures show population fluctuations. The same experiments provide estimates of the type and strength of density-dependent mortality on a local scale. When these parameter values are put into a local competition model, the predicted and observed dynamic behaviour are in qualitative agreement. A simulation model for a global population of a single species living on a divided and ephemeral resource is presented and a stability analysis of the model performed. Finally, the discussion considers other related work on the effect of patchiness on stability.

Item Type: Book Chapter
ISBN: 0-19-854591-6, 978-0-19-854591-0
Keywords: Spatial distribution; Competition; Drosophila; Population cycles; Chaos; Aggregation; Probability refuge;
Academic Unit/Department: Mathematics, Computing and Technology > Computing & Communications
Interdisciplinary Research Centre: Centre for Research in Education and Educational Technology (CREET)
Item ID: 17356
Depositing User: Jonathan Rosewell
Date Deposited: 06 Jul 2009 14:17
Last Modified: 24 Nov 2014 12:10
URI: http://oro.open.ac.uk/id/eprint/17356
Share this page:

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk